The One Laptop Per Child project is offering a special deal for the next two weeks that allows you to donate a laptop to a child in a developing nation and also get an XO laptop for your child. The machines look pretty cool, and if I had a child I'd definitely consider getting one because the price is extremely low for so much functionality. For $399 you can "give one, get one", and $200 of that price is tax-deductible.
Like the cheap adjustable eye glass frame, this sort of technology has the potential to revolutionize the society and culture of the developing world.